1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
dybincka [34]
3 years ago
14

Help me please urgent

Mathematics
1 answer:
asambeis [7]3 years ago
7 0

Let \:  x  \: be  \: the \:  number \:  of \:  hours \\ Expession: - 4.5x =  - 27\Leftrightarrow x =  \frac{ - 27}{ - 4.5}  = 6 \: hours

You might be interested in
Mr. pham cuts a cake into 8 equal slices. then, he cuts every slice in half. how many of the smaller slices does he have. use wo
Katen [24]
8 times 2 equals 16 so the answer would be 16

4 0
3 years ago
PLEASE HELP ASAP!!!!
Fynjy0 [20]

Answer:

It is not valid since there is more than one variable being changed at one.

Step-by-step explanation:

Jackson changed the brand of soil, but he also changes the amount of water, and the amount of sunlight the plants are receiving, so his conclusion that the soil was more effective is not valid.

6 0
3 years ago
What is the mathematical sentence of "A number increasd by 7 is 15?
svet-max [94.6K]

Answer:

B

Step-by-step explanation:

A number increased by 7 means, 7 was added to the number and the result is 15

6 0
2 years ago
the scale from a square park to a drawing of the park is 5 m to 1 cm the actual park has an area of 1,600 m² what is the area of
ludmilkaskok [199]

Answer:

<h2>64 cm²</h2>

Step-by-step explanation:

given:

the scale from a square park to a drawing of the park is 5 m to 1 cm

the actual park has an area of 1,600 m²

find:

what is the area of the drawing of the park​

solution:

drawing scale is 5m : 1cm

<u>1,600 m² </u> = <u>      5² m²  </u>    

   x                  1² cm²

cross multiply:

5² m² x = 1600 m² (1 cm²)

x =<u> 1600 m² </u>

      5² m²

x = 64 cm²

therefore, the area of a square park in the drawing is 64 cm²

5 0
3 years ago
Can u guys help me with number 1 (a) I’m really struggling and it will mean a lot!
Degger [83]

since alie ate 15 gram and there are 12 grams in every 8.

what i did, I made a table that looks like

once you make a table that looks like this, in this kind of situations.

multiply across ( yellow ones)

and then divide by the green one

and then you'll get the answer



4 0
3 years ago
Other questions:
  • Researchers are investigating whether people who exercise with a training partner have a greater increase, on average, in target
    10·1 answer
  • Choose the ratio below that is equivalent to 3:5<br>A. 5:3<br>B. 9:15<br>C. 9:5<br>D. 8:4
    11·1 answer
  • If the null space of A4×5 is exactly a two-dimensional plane, answer the following:
    12·1 answer
  • Find the average distance each data value in the set is from the mean. Round your answer to the nearest tenth, if necessary. Mod
    15·2 answers
  • kaye has $2.80 in nickels and dimes. she has three timesas many dimes as nickels. how many nickels and how many dimes does she h
    9·1 answer
  • help the volume of the roller is 576cm. Calculate the height and area of ​​the roller if its radius is 8cm​.​
    10·1 answer
  • PLEASE HELP ILL GIVE BRAINLEST
    7·1 answer
  • What kind of angles are 1 and 5 in the picture below?
    5·2 answers
  • Really bad at math please help
    10·1 answer
  • Geometry please help (pentagons)
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!